11,000 RPM Turbine Pencil Sharpener!

[@WesleyKagan]

Just wanted to jump in here and mention that we have some new Harbor Freight engine experiments coming in the next few weeks, as well as the long-awaited sequel to the Mechanical computer Pt.2! Have a great New Year!

[@koenjanssen81]

As always.........can't wait!!!!!

[@ellisjackson3355]

T88 turbo on one of those predator engines?

[@nathancole1802]

Awesome I can't wait. Merry Christmas everyone

[@802Garage]

Yesss!

[@wesfer1]

Fellow Wesley here with a passion for Harbor Freight predator engines, your work is awesome. Wish I could have put it on my old go karts

[@CCPwillfall01]

I like how you didnt make a 45 minute video out of 8 minutes worth of content like most diy youtubers

[@kainenlee9465]

But we both watched the whole thing 🤣

[@aaronkeith7336]

I never use this emoji but 👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻

[@johnnyjohnny1325]

When the slow motion actually starts at the action. 😫🥜💦

[@Z3NITH_]

he made an 8 minute video out of a 30 second clip dude

[@JohnCoffins]

Oh God 8 minutes is plenty long enough. It's a pencil sharpener. We just wanna see you put it together and grind pencils that's it.

[@kmemz]

If you try this again, you should swap the motor of an existing mechanical sharpener, or otherwise build your own tri-gear sharpener. It seems like the three cylinder gear setup that the typical crank and electrical sharpeners use works a lot better than bladed for high RPM sharpening, the bladed designs are mostly good for low RPM high torque cutting, such as the intended use case of being compact and handheld.

[@WesleyKagan]

You're absolutely right- And that's probably the solution to a lot of this. ultimately chip accumulation was the downfall.

[@thomasgatzke9241]

Maybe a gear reduction drive as well.

[@AndrewWolboldt]

@@WesleyKagan and a planetary gear set

[@1NIGHTMAREGAMER]

i was gonna say same thing

[@TheBootyWrangler]

@@WesleyKagan a dual blade with 2x opening for shavings to exit may end up being the ultimate design. This would split the length of the shavings in two, allow twice as much material to be removed in the same time frame, would provide a more even cylindrical cut of the pencil, and would eliminate the offset force created by the friction on only one side of the pencil. There is angular force being applied to the shaft with the singular blade design which most definitely causes a fuckload of issues.

[@christop672]

The camera shake at the "very precise install tool" part made it so much better lol.

[@randomotter6346]

That bit made me laugh

[@ExRazR]

@wesley kegan 3:32 - looks like you've installed the wheel the wrong direction (spoons pointing convex against the nozzle) Nice print though can't wait for the updates on the diy freevalve engine :D

[@howa08]

Shit you're right!

[@aggaming1766]

I almost thought I was the only one who saw that.

[@jeyanthgoringe600]

Yeah I caught that too

[@ryanmecham8865]

i wondered why it slowed down so quickly

[@Hawk7886]

@@aggaming1766 if you're ever on the internet and you think, "I wonder if I'm the only one who..." - Don't. You're not.

[@just_a_guy_doing]

omg, thats awesome, about 20 years ago when I started teaching, I was cleaning out the shop and came across an old pencil sharpener, and a wood router.. I said, hey why not.... So a afternoon after school a few students stayed after and we built a very scary sharper that ate a new pencil just a few seconds. The best I can remember the router spun somewhere around 15000 rpms, the vibations and noise the hand pencil sharper made were so unique I can remember them to this day. My principal was walking by and stopped in and said, love the creativeness, but not so much the lack of safety.. I smiled, he smiled, we laughed about it for a few years after. Its been years since I thought about it and was a forgetten memory till now.. Thank you for the old memory, and chuckle along the way... Happy Holidays, Chad

[@WesleyKagan]

Happy holidays to you as well- some of my best stories come from wood shop. A good shop teacher can make a huge difference- sounds like that was a great experience!

[@ValkyrieStarTV]

The best things are the "very scary" ones with a certain lack of safety hahaha

[@tribble1]

It may seem impossible that there might be improvements to this design, however redirect the airflow to blow out shavings.

[@WesleyKagan]

That’s… a really good idea.

[@reppdog]

Use a tube for main shaft and drill random ports in it to send air through, could be neat

[@dylanwalter1]

@@WesleyKagan make sure the exhaust is pointed directly at the users eyes

[@schwig44]

@@dylanwalter1 please look directly into the operational end of the device

[@dylanwalter1]

@@schwig44 i see a spinnyboi

[@thenewhalogod]

3:37 based on your cad drawings, isn't the turbine in the wrong way? bucket openings facing the away from the inlet in that assembly?

[@oskarthompson3789]

Yes, yes it is

[@filipefmelo]

It is. I came to the comments just for this. Hehehe. You beat me to it

[@chris993361]

I also came in here just for that. I wasn't sure if maybe I didn't understand how a Pelton wheel worked, but I was pretty sure the airflow should be directed into the concave part.

[@Josh-jw3go]

You can flip the wheel over and it will for in exactly the same...

[@chris993361]

@@Josh-jw3go I'm not quite sure what you're saying. If you flip the wheel around then the stream of air will go into the scoops on the buckets instead of the back side of the buckets.

[@davidsteinhour5562]

I wish I had half the enthusiasm for my legitimate projects that you have for even the most ridiculous and mundane ones. You're an inspiration. This is a spectacular failure, but it's much cooler than the 240SX that was sitting in my barn for 2 years because I had an inability to make myself work on it.

[@WesleyKagan]

What's not shown is about 200 Completed projects in solidworks waiting for a rainy day like this. I get it.

[@donovanwilliams5424]

I have several 240SX's. Nobody wants to work on their 240's. Lol.

[@purplenanite]

I wonder if this could be useful for the pencil sharpening speedrun - TAS, of course.

[@electra_]

glad i'm not the only one with this thought

[@cudomoney]

my first thought was a smallant collab

[@subparwelder]

90% sure the problem was that the two spurving bearings were not in a direct line with the panametric fan, have you thought about using prefabulated amulite for a more malleable baseplate?

[@icecreamsundae1038]

Pretty sure Rockwell owns the patent, and would never allow it.

[@Kermitonwheels]

Dumb projects are so entertaining. We literally have no idea what you’re going to do next. Garage looks nice and tidy now too. Thanks for doing stuff.

[@WesleyKagan]

They are sometimes my favorite projects. I spent a few days cleaning for sure! Thanks!

[@ExhibitionofSpeed]

No Wesley. Thank YOU. Keep it up buddy.

[@WesleyKagan]

Same to you, I want more this year! I need to get up there in the 928

[@ExhibitionofSpeed]

@@WesleyKagan The crossover episode that the Internet needs! Let's chat when the weather gets warm again and the pretty roads open up again. Would love to see your face.

[@DiscoFang]

I see your problem. During reassembly after you said you left the pinion grub-screws off, you appear to have flipped the wheel so the cups are running the reverse direction. You had it right first time. So clearly not enough rpm. Always solution... MORE!

[@sodiumvapor13]

Awesome vid! Would be interesting to see if you could use the outflow gas from the pelton drive to expel the built-up pencil wood shavings.

[@Scou73r]

Maybe I'm missing something, but it looked like those scoops were facing the wrong direction.

[@milandavid7223]

Yeah I'm pretty sure that turbine is upside down

[@alekvincent2244]

Yep, no wonder it stopped as soon as a pencil was inserted

[@ForgeOfEternia]

3:40 a perfect picture showing the scoops facing the wrong way

[@cptebi]

absolutely brilliant, only the greatest of minds think of making a pencil sharpener powered by a turbine

[@WesleyKagan]

I'm not sure about great minds, however I appreciate the sentiment!

[@cptebi]

@@WesleyKagan only the greatest of minds that are fuelled with pints of whiskey come up with this amazing stuff

[@a_Fax_Machine]

You and Superfast Matt are my favorite engineers allowed to run amok. Also, I love the idea that you took an activity that requires pretty decent torque, and applied unbridled RPM to it instead.

[@WesleyKagan]

Haha I mean if you add enough RPM torque doesn't matter.

[@griffinsells2611]

@@WesleyKagan it's like the air force's solution to lift. You don't really need it if you're moving fast enough

[@Lux158]

Pardon but at roughly 4 min it looks like that the turbine is the wrong way around.. or should the opening be not on the side of the nozzle (here it looks like this: ==> C, but shouldn't it be like this: C

[@milamber319]

maybe my understanding of these things is flawed but i also saw that and went....huh?

[@lautaroschnackaragon2320]

3:05: In this point you have put the center wheel correctly, but here 3:34: You have the centerwheel backwards so that the air flows on the convex side of the spoons intead the concav side.

[@southerndiy1]

This is exactly what I look for in a pencil sharpener

[@hypnoticmoai6509]

You can possibly measure the rpm by finding out the pitch that it makes, and divide that pitch by the number of blades on the wheel, which gives you rps. Then it’s just a matter of multiplying by 60 to get the rpm. I’ve used this on mouth powered turbines too, and they can get stupid fast.

[@htownblue11]

Wes you are a gem amongst a world of dumb less shiny rocks. Please don’t ever stop bringing your genius and humor to the masses. You are the engineering hero we deserve.

[@wm973]

Your videos are the most exciting down to earth 'why not' projects I have seen. Thank you for showing that the world is an open experiment. Great stuff!

[@sbickmore15]

Love the 928 in the back. One of my favorite Porsche models.

[@DnBBHox]

3:43 am I seeing it wrong, or was this assembled with the pelton wheel in backwards?

[@WesleyKagan]

In that shot it was, I had to flip it around on disassembly #2.

[@DiscoFang]

@@WesleyKagan Weird, coz at 5:56 when it self destructed it was facing the wrong way too.

[@wachocs16]

Probabbly will work better with a 1:10 gear reduction or maybe more. You need low RPM and high torque so you can push hard on the pencil agains the blades. At that speed the blades probabbly hover over the pencil creating heat

[@kender1412]

Awesome build. These trivial odd builds are awesome. An odd idea comes into your head and you design/build it. That's the dream many of us have.

[@ilkkasorsa9778]

I'd really like to see this sharpener eating a pencil as fast as you push it in. Why not make multiple nozzles around the circumference and turbine wheel more robust at the center? It should be pretty strong as a printed part if you have continuous layers for the full width of the part.

[@WesleyKagan]

I actually really don’t hate this turbine design if I’m honest. It’s not terrible. Stronger bits here and there and a less terrible set screw and it would do okay. It’s definitely staying in the “good” pile of parts

[@defenestrated23]

A bigger wheel with more jets should increase torque and decrease rippums.

[@shawns156]

You need a kinetic fly wheel for inertial torque, will buzz through pencils easy with a proper weighted one- though if not enough power, a reduction gearing for sure.

[@fencingboy101]

Mark of a true engineer. Builds something that makes no sense, it doesn’t work, end the video. I love it

[@Longnose154]

just stumbled upon your channel and kinda got hooked. Don't know if it was the flawless surface finish of the wheel, the high precision bearing tool or the sarcasm which straps everything togeher. It makes a great mix. I'm off to binch watch a few more of your videos for some more of that humor. Keep up the great work!

[@WesleyKagan]

Thank you! Glad you enjoyed it!

[@braydenj03]

1:50 I love that natural camera shake

[@tsvandyke]

6:02 ... pelton wheels mounted backwards ( the air enters the bottom - hitting the backsides of the 'cups' - reducing their effeciency )

[@artbk]

Since 4th grade I wanted to attach a pencil sharpner to a power drill just to see a pencil get zoinked into shavings instantly. You made a childhood dream of mine somewhat come to fruition. Thanks and good luck on every endeavour of yours!

[@42Hertzer]

This definitely need a follow up!

[@Sbinott0]

You should add some more nozzle to give it more torque, up to 6 is good with a pelton design

[@WesleyKagan]

I absolutely could, It wouldn't be bad with this build.

[@lautaroschnackaragon2320]

5:55: I thought you were just about to say you find out you have put the wheel the wrong direction, but... no.

[@Flopsaurus]

I love this so much. The fact that it doesn't work at all makes it way better.

[@scottinWV]

This is awesome! Maybe try the double cutter design of the hand cranked sharpeners.

[@diecastcarcollector3563]

Nice project and even nicer 928 in the background!

[@dvoob]

putting the tripod on the same table being hammered @ 1:59 is the most underrated part of this video

[@aku2dimensional]

I wanted to build my own steam generator to power my house and this helped to sort of design one, I thought about using this style or a Tesla turbine attached to a generator.

[@RidgeyMantis]

you should vent the air toward the sharpener blade to help prevent clogging and to also help with cooling

[@SnowyPup]

I will say, if you're using these small pencil sharpeners, I would recommend trying to spin the pencil instead of spinning the sharpeners. That's how a lot of world record pencil sharpening speed runners do it.

[@FormulaJuann]

That is a very precise bearing installation tool

[@WesleyKagan]

Thank you it’s also useful for watch repair.

[@southerndiy1]

@@WesleyKagan accurate twice a day

[@thefirstmissinglink]

Always love those moon crater wheels on the Porsche. Great test.

[@WesleyKagan]

I honestly usually go for the Phone dials, but I am really liking these on this car. Thanks!

[@ilkkasorsa9778]

I guess you installed that wheel wrong way round? At first it was ok but at the end, wrong. Or, am I missing something completely with this Pelton wheel?

[@WesleyKagan]

Nope, I installed it wrong the first time. You aren't mistaken. I had to switch it.

[@ilkkasorsa9778]

Still, it's wrong way at the end where it breaks?

[@Opharg]

@@ilkkasorsa9778 At 6:27 in the ripped apart shot it looks like the "top" of the buckets were on the left, but it rotates counterclockwise. I might be missing something completely though.

[@perkele1989]

The frontier of science. 👑

[@WesleyKagan]

Truly answering the questions everyone is asking.

[@perkele1989]

@@WesleyKagan ngl I kinda wanna see a wholeassed attempt at this. I wont be satisfied until your contraption can gobble down a full pencil into shavings in less than 1 second. I believe in you!

[@ChillyJack]

Pretty cool build, I regrettably think I'll be sticking to sharpening my pencils on my benchtop belt sander though.

[@marines0001]

I know this is really simple but when installing bearings use a socket that sets on outer rase keeps it centered with no damage.

[@billklement2492]

Wesley, as one who doesn't like committing to ink, I very much prefer pencils. I do prefer wooden pencils, but use mechanical ones due to the required maintenance of constantly sharpening them. I think an 11k rpm sharpener is a wonderful idea! I think the problem is the sharpener is designed to turn a few rpms. The plastic material has too much drag and would heat up. The blade angle is too steep and would dig in. Also, it seems to clog up. A redesign to make it easier for the waste to exit and maybe using the waste air to blow out the shavings would keep it clear. Merry Christmas and looking forward to a new year of cool projects! Thanks for the video!

[@WesleyKagan]

See, I'm the opposite. I'm someone who constantly commits to ink when I really shouldn't. That's where my lack of practice for sharpening pencils comes from. Merry Christmas, Thank you!

[@billklement2492]

@@WesleyKagan Well, yes... but you have a command of the design software. You can design something and go back and edit it. That's like a pencil and not a pen. We live in a wonderful world where we don't have to start a drawing over for a redesign. Remember most nuclear power plants in the US ( and elsewhere) were designed with a slide rule!

[@sebastiansander7626]

automatically sharpening your pencil by hand < manually building a pneumatic pencil sharpener you make MEJ proud, brother

[@802Garage]

Wow that print did turn out fantastic. From the thumbnail I literally thought it was a cast part and I was wondering where the heck you got it. Merry Christmas and congrats on the awesome year!

[@WesleyKagan]

Thanks! I agree, it did well. Merry Christmas to you as well, Congrats on the V10 install!

[@802Garage]

@@WesleyKagan Thanks very much! More to come Soon™ as always. Can't wait to see what you cook up next.

[@victorwidell9751]

The breaks are very clean right where the cups met the stems with a sharp angle concentrating the stresses. Add fillets.

[@williamchamberlain2263]

This is the quality engineering that keeps me coming back to KZbin

[@JB-or9yw]

I love your tolerance specs

[@foxface16s58]

I love this sm thank you for existing and makin a homie day

[@poxer1]

So nice to see someone having smart fun. I like watching that.

[@bEnderOfWorlds]

Never been to your channel before but I'm already sold

[@9072997]

1:52 I'm curious if that is organic camera shake or if that was added for effect?

[@SerbanCMusca-ut8ny]

This is great content, glad you posted it! Keep up the good work! Cheers. Btw, the numbers on that chemical reaction should be 2, 25, 16 and 18 (but I guess you know it).

[@WesleyKagan]

Glad you enjoy it!

[@meatsuitpilot6642]

I wonder if you could make a torque multiplier to make the air more effective at shearing the wood?

[@DD-lb7nn]

beutiful car, beautiful cat, beautiful bike. this man is living the dream

[@jay-rev]

this got my fastest SUB of the week! love this guy!

[@zachreyhelmberger894]

Fun project!! Was it the energetic disassembly what you were trying to film?

[@SirLoinTheBeefy]

For pencil sharpener 2.0 consider switching from compressed air to water.I think the torque gains will make the pencil even sharper.

[@donovanwilliams5424]

Very nice 928S! It's a beautiful car.

[@galendeig6747]

OK, the camera shaking along with the hammer blows got you the "Thumb's Up"!

[@WildEngineering]

youre a mad lad, love it. great work bro, happy holidays

[@WesleyKagan]

Happy Holidays! Thanks!

[@kdawg3484]

Gonna need a followup on this with a proper rotary pencil sharpener. The X-ACTO Ranger 1031 says right on its Amazon page that it's good for up to 20,000 RPM for when you have really big classes at school.

[@yari369]

That was awesome!

[@WesleyKagan]

Thank you!

[@tylorkelly168]

The moment you said, "This channel is just a worse version of interdimensional cable" I've never unsubscribed from a channel so fast

[@RogerioCosta1.0]

I think You could have measured the rotation using the sound frequency and the number of blades. Great holidays!

[@ferrariguy8278]

Is "hold my beer" compatable with the forthought of installing one's safety squints?

[@WesleyKagan]

I’d do believe there is a correlation, yes

[@paulwalsh6795]

U could put some kind of flywheel on part of it that spins to give it more inertia to let it sharpen better

[@yako0006]

This thing almost reaches the noise level of those electric pencil sharpeners in classrooms across the nation

[@brenttonbmx]

Awesome, my first car was 1979 928 hopefully I’ll find her again one day

[@browpetj]

So funny. Good humour, almost British! Subbed. Glad the grub screw came out after you got your footage :)

[@81toplessrabbit]

Legit the best video on YT.

[@Coinfindr]

nice, what it you used one of those chamfer tools for roundstock/allthread? and instead of a paddle wheel maybe try a tesla design?

[@JoeZelensky]

In order to sharpen the pencil you would need to use one of those sharpeners that are usually screwed to the door frame or such. They have cutting gears in them. So that is what you would need to attach the air power to.

[@His-duden3ss]

Wesley, I enjoy watching your videos and your ingenuity is fascinating. I noticed something in this video. At minute 3:34, correct me if I am wrong, but I think the orientation of your turbine is incorrect.

[@dr.dansgarage]

I like how the eye protection is in the background as the wheel lets go

[@creounity]

Very precise bearing install tool, indeed! :)

[@WesleyKagan]

Absolutely!

[@jamesdeath3477]

Ah hey, I was wondering where you'd got to. Keep them coming!

[@Xray2j]

6:21 are those you safety glasses on the table?

[@embbuilt]

Good to see you have safety glasses on... your bench!!

[@caelator3549]

1:50 I can literally see the vice in the background and you're telling me, how he's not using THAT for pushing in that Bearing

[@heavenbot]

No idea who you are, but I'm glad to now start to know who you are! I'm hooked as soon as you say "the 3:30 AM timeslot on CSPAN"

[@SB-nr1dz]

Another great video from Hammer in his hand Kagan

[@Metal-Possum]

That "bearing install tool" is called a swing press. I use one regularly in my job as a bicycle mechanic, when customers aren't looking.

[@heidelbergaren5054]

This is spitball engineering at its finest - thanks !

[@FinboySlick]

Always a treat. I eagerly watch everything you put out, silly or not.

[@rompowertube]

"Don’t build this, but the files are below." I love this channel.

[@dannypratt2957]

So Precise you can feel it!!

[@gradyjacobs6890]

Love the safety glasses in the background of the shot when it fails 😂

[@LifeofLeium]

I saw that computer on the wall, thats the coolest computer ever, I never thought of putting it on the wall instead of the normal pc box, ive seen them on the table like on the wall but never completely on the wall

[@GREATLORDPOOH]

Your Precision bearing alignment tool just got you another sub

[@steak7654321]

That bike is gorgeous

[@WesleyKagan]

Thank you!